Strufiber FP
High performance micro polypropylene fibre

Strufiber FP, is a high performance micro polypropylene fibre, developed as a crack controlling additive for cementitious materials. It is available as monofilament 12mm in length for concrete and 6mm in length for plaster and mortar. It is used to inhibit the formation of small cracks which can occur through plastic shrinkage, premature drying and early thermal changes, in order to provide utilization of the intrinsic properties of the hardened cementitious material.
Download product catalogUses
- Crack control in readymix concrete, precast concrete, conventional shotcrete, screeds, rendering mortars, microsilica concrete
- Concrete slabs, pavements, driveways, imprinted concrete
- Water retaining structures, marine concrete etc.
- Patch repair, thin section walling etc.
Advantages
- Cost effective - replaces anti crack wire mesh
- User friendly - decreases construction time and labour
- Versatile - Inhibits intrinsic cracking in concrete, improves finishing characteristics, concrete durability and acts as a rust proofer.
- Disperses uniformly throughout the mix & does not rust.
Standards compliance
Strufiber FP complies with requirements of ASTM C111.6
Properties
Dosage
The optimum dosage of Strufiber FP to meet specific requirements should always be determined by trial mixes using the materials and conditions that will be experienced in use. As a guide to trials, the following dosage levels of Strufiber FP are recommended.
Use at other dosages
Dosages outside the typical ranges quoted above can be used to meet particular requirements, Contact STRUMIX for advice.
Effects of overdosing
Overdosing of Strufiber FP will generally produce a reduction in workability and an increase in the cohesiveness of the mix.
Packaging
Strufiber FP is available in 5 and 20 kg bags.
Property | Details |
---|---|
Storage | When stored in the original unopened container in cool, dry conditions away from sources of heat and naked flames, Strufiber FP will have a shelf life of 36 months. |
Form | Virgin polypropylene fibre |
Specific Gravity | Approx. 0.91 gr/cm³ @ 20°C |
Alkali Content | Nil |
Sulphate Content | Nil |
Air Entrainment | Air content of concrete will not be significantly increased |
Chloride Content | Nil |
Fibre Thickness | 18 and 30 microns |
Young's Modulus | 5500 – 7000 MPa |
Tensile Strength | 350 N/mm² |
Melting Point | 160°C |
Fibre Length | 12 mm & 6 mm |
Maximum Aggregate Size | 32 mm |
Dosage for 12 mm Fibres | 1 kg/m³ |
Dosage for 6 mm Fibres | 1 kg/m³ |
Typical Areas of Application | Ready mix concrete |
Instructions for use
- Ensure the correct dosage is used.
- Mix thoroughly to ensure even distribution.
- Follow standard concrete mixing procedures.
Packaging & Storage
- Strufiber FP is available in 5 and 20 kg bags.
- Store in a cool, dry place away from heat and flames.
- Shelf life of 36 months in unopened containers.
Health and safety
Ensure adequate ventilation during use. Avoid inhalation of dust.
Fire
Non-flammable. Store away from sources of heat and open flames.